We made no changes to our settings and then all of a sudden one of our accounts just stopped letting us send out emails. We were receiving them fine for about a week and now it seems that our receiving isn't working either. Sometimes it works and sometimes it doesn't. It keeps saying password failed and when we type in the password, sometimes it works and then sometimes it doesn't. Very frustrating. Why would it all of a sudden stop working. I cannot use webmail as a go around, I need thunderbird to work please!! These seems to happen every few months and is becoming a large problem that doesn't seem to have an answer. Please help.